Custom board ZCU104 fails to load in external mode

I am trying to get my Xilinx ZCU104 FPGA board to work with SoC blockset for 3 months now. I had many issues getting the SD card image ready and the dtsi files ready which are explained in my previous posts in the Mathworks community:

https://www.mathworks.com/matlabcentral/answers/1636970-adding-xilinx-zcu104-board-to-soc-blockset

https://www.mathworks.com/matlabcentral/answers/1661770-soc-builder-fails-to-deploy-on-xilinx-zcu104-fpga-board

Now, I have solved previous issues and able to upload a model to the board using SoC Builder. However the following test still fails:

test(boardSupportObj, 'feature','deployment');

In my debugging, I found the issue is in the test for load for external mode. When I try to manually redo the test as suggested by the test failure log, I get the following error log:

C:/ProgramData/MATLAB/SupportPackages/R2021b/toolbox/shared/libiio/base/src/iio_helper.c 
C:/ProgramData/MATLAB/SupportPackages/R2021b/toolbox/shared/libiio/base/src/iio_helper.c:2:17: fatal error: iio.h: No such file or directory 
 #include "iio.h" 
                 ^ 
compilation terminated. 
gmake: *** [iio_helper.c.o] Error 1 
 
D:\Dropbox\8_Work\FPGA_Boards\ZCU104\SoCBuilder\ZCU104_Board_Creation\slprj\ert\mSoCRamp_arm>echo The make command returned an error of 2  
The make command returned an error of 2 
 
D:\Dropbox\8_Work\FPGA_Boards\ZCU104\SoCBuilder\ZCU104_Board_Creation\slprj\ert\mSoCRamp_arm>exit /B 1  
### Creating HTML report file index.html
### Build procedure for mSoCRamp_arm aborted due to an error.
 Build Summary  
Code generation targets built:

Model         Action  Rebuild Reason                                    
========================================================================
mSoCRamp_arm  Failed  Code generation information file does not exist.  

0 of 2 models built (1 models already up to date)
Build duration: 0h 0m 35.392s
Error(s) encountered while building "mSoCRamp_arm_rtwlib"

It seems like IIO headers and libs are missing from the installation. I'm using Matlab 2021b Windows version and have installed all the toolboxes listed as requirements. Could someone help me resolve this issue? I also get the following warning during the test which might be relevant:

Warning: The chosen board "Zynq ZCU104 SoC Board" does not have a sysroot registered, cross-compilation may fail.

I'm following the "Using custom board with SoC Blockset" tutorial mentioned in below URL and modified the given script to suit my FPGA board:

https://www.mathworks.com/help/supportpkg/xilinxsoc/ug/Using-a-Custom-Board-with-SoC-Blockset.html

How can I register a sysroot for my custom board and which path should I use for sysroot? Would it resolve this error of missing iio headers? I would really apprecieate it if someone can help me resolve this issue.

Thanks and Regards,

Udara

[Udara De Silva]

@Tom Mealey would you be able to provide me some help to resolve this issue? Thank you for your attention

Answer 1

[Sanjay Boorle]

To register sysroot, run the following command. Make sure you provide the board support name you used during ZCU104 board support creation.

soc.sdk.setupSoftwareTools('Zynq ZCU104 SoC Board');

For more information refer page https://www.mathworks.com/help/supportpkg/xilinxsoc/ref/soc.sdk.setupsoftwaretools.html

[Udara De Silva]

Hi Sanjay,

Thank you for your answer. Actually, now I'm getting a different error which occur while trying to connect to the hardware in external mode. I can see the program uploading and rebooting happens as expected. But when trying to run the program in external mode I get the following error:

An error occurred attempting to open an rtIOStream

I'm using the FPGA firmware image availiable here:

https://github.com/mathworks/buildroot/releases/download/mathworks_zynq_R21.2.0/zcu104_firmware_image.zip

Any suggestions to solve this problem?

Thank you for your support.

Best Regards,

Udara

[Sanjay Boorle]

Hi Udara,

Can you try the following:

1. Check if you are able to create a hardware board object using "socHardwareBoard".
2. Delete the folder named 'slprj' or change your working directory to a new folder and try tunning the model again

If you still get a error, please share the entire error log.

Thanks,

Sanjay